For your old mécaboites 50cc liquid :
APRILIA: AF1 50cc / ET 50 tuareg / red pink 50 / tuareg 50cc ...
MACAL: DAKAR junior 50
MALAGUTI: MEX 50 / MFX 50 / MLX 50 / MRX 50
MINARELLI: RV3 A 50 / RV4 A 50
MOTRON: COMPACT 50 RZ1 / COMPACT RACING ES 50 / FLASH 50 / GTO 50
Engine minarelli RV3, RV4, RV5, RV6 ...
Here is one of the best performing kits still on the market for MINARELLI RV3 / RV4 / RV3A / RV4A ... in cash! This cylinder is none other than the big EUROCILINDRO brand ATHENA the takeover of the Italian firm. Attention we market these kits for the enthusiasts but we must sometimes expect a rather long delay! This cylinder kit uses a special transfer shape with rear intake to lateral, a real monster very well architected both for a perfect filling of the bottom engine and a good calculated dispersion!
The outlet pipe down motors passes without valves down while the rear outlet transfers that divides to join the lateral outlets of the valves. The sweeping is perfect, the channels are well drawn and calculated, the finish is almost perfect EUROCILINDRO had chosen a normal escape form special to equip this cylinder. In the 1980s, this kit won many competitions in Italy and this is certainly thanks to the various studies.
You will need to use the appropriate athena valves with this cylinder. The diagrams are fairly based torque to accompany the small stroke origin of the engine rv4, the piston is a model specifically designed for the original cylinder head, you will of course be able to bring a finish especially level cap. This piston is reinforced model in bi segment, with lateral nipples, athena has laid a normal segment has flat down and a chrome hard curved for the top of the piston! The 43.5mm bore is very clean, the treatment is a chrome / nikasyl base and the alloy is of very high quality. A special intake pipe comes with this kit, this pipe will best receive a carburettor of 20mm rigid phbg, nothing prevents you from mounting flexible with a suitable sleeve. This kit is even delivered with clutch springs reinforced so that the power of the engine does not slip ...
We recommend this kit with at least : carburettor phbg 20mm (you can also mount a 19 or even 21mm), exhaust of relaxation, reinforced bearings, cold candle, special valves racing, preparation crankcase engine, reinforced rod.
The pack includes :
Cylinder ATHENA racing aluminum Ø43,5mm for cylinder head origin
Piston Ø43,5mm with bi-segment side nipples
Piston shaft reinforced Ø12mm anti-wear treatment
2 crab piston clips Ø12mm
notice
Guaranteed
2 segments including a chrome-plated hard
4 reinforced clutch springs
1 pack complete seal (CAUTION without seal of base!)
1 athena racing sticker
1 inlet pipe for carburetors PHBG rigid Ø20mm
As an option we offer a preparation stage 1, this preparation is a modification of the channels and the exhaust light by increase of the diagrams and improvement of the conduit, it increases the performances of the cylinder. An improvement of the piston and skirt bottoms is also included in this modification. Allow a little extra time for this preparation!
